Thank you , Czar.

Depends on what idea you are trying to convey. The first sentence is not clear because you don't have commas to separate certain parts of the sentence. "Having opened in 1955, Disneyland in California is [not 'in'] regarded by many [not 'any'] as the original fun park." I would say that I used "having opened" here since it is qualifying why it is considered the "original." Because it had opened in 1955, it might have been one of the first. Could you say the following? "Opening in 1955, Disneyland in California is regarded by many as the original fun park." This gives more of an implication that because it opened in 1955 (not as explicit as if you said, "Having opened..."). Still, I think that one is ok to use also. "Opened in 1955..." does not seem like it is correct at all. The second sentence, I would say A is "more" correct since working overtime has somehow caused you to miss a wonderful film. The third sentence, there again is another issue with the grammar. "If they win the final [if there is a series of games... we call them "finals"] tonight, the team is [not 'are', although 'team' refers to a plural number of people... it is a singular 'team' or entity so it is singular] going to tour around the city __cheered__ by their enthusiastic supporters." I think you can also use "being cheered," but as a native English speaker I'm not sure why, but "cheered" seems appropriate here. Sadly, I'm not familiar with non-predicate verbs but can guess that they don't have a predicate. Perhaps someone with more grammar knowledge can step up to answer this one for you (and correct any of the mistakes I've made above).